danibrear

const chunk = (arr, size) => arr.reduce((a, n) => a[a.length-1].length < size ? [...a.slice(0,-1), [...a[a.length-1], n]] : [...a, [n]], [[]]);

const a = [1,2,3,4,5,6,7,8,9]

console.log(chunk(a, 2)); // -> [[1, 2], [3, 4], [5, 6], [7, 8], [9]]
console.log(chunk(a, 3)); // -> [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
console.log(chunk(a, 4)); // -> [[1, 2, 3, 4], [5, 6, 7, 8], [9]]

danibrear

// From https://docs.amplify.aws/cli/graphql-transformer/auth#field-level-authorization

// The code where this exception is thrown is: https://github.com/aws-amplify/amplify-js/blob/d9aa32837f15f408daba0a0104bb27042b9331da/packages/api-graphql/src/GraphQLAPI.ts#L314

type User @model {
  id: ID!
  username: String
  ssn: String @auth(rules: [{ allow: owner, ownerField: "username" }])
}

danibrear

/* eslint-disable @typescript-eslint/no-var-requires */

/**
 * How to run:
 * - export AWS_PROFILE
 * - export AWS_REGION=us-east-1
 */
const DynamoDB = require("aws-sdk/clients/dynamodb");
const dynamodb = new DynamoDB();
const DocumentClient = new DynamoDB.DocumentClient();